🛡️ UBUNTU-CVE-2025-21870
⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc4-topology: Harden loops for looking up ALH copiers Other, non DAI copier widgets could have the same stream name (sname) as the ALH copier and in that case the copier->data is NULL, no alh_data is attached, which could lead to NULL pointer dereference. We could check for this NULL pointer in sof_ipc4_prepare_copier_module() and avoid the crash, but a similar loop in sof_ipc4_widget_setup_comp_dai() will miscalculate the ALH device count, causing broken audio. The correct fix is to harden the matching logic by making sure that the 1. widget is a DAI widget - so dai = w->private is valid 2. the dai (and thus the copier) is ALH copier

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2025-03-27
Updated 2026-06-15
Modified 2026-04-22
Fix URL N/A

Affected Packages

Software From version Fixed in
linux 6.8.0-78.78
linux-allwinner-5.19
linux-aws 6.8.0-1035.37
linux-aws-5.0
linux-aws-5.11
linux-aws-5.13
linux-aws-5.19
linux-aws-5.3
linux-aws-5.8
linux-aws-6.2
linux-aws-6.5
linux-aws-6.8 6.8.0-1035.37~22.04.1
linux-azure 6.8.0-1034.39
linux-azure-5.11
linux-azure-5.13
linux-azure-5.19
linux-azure-5.3
linux-azure-5.8
linux-azure-6.11 6.11.0-1015.15~24.04.1
linux-azure-6.2
linux-azure-6.5
linux-azure-6.8 6.8.0-1034.39~22.04.1
linux-azure-edge
linux-azure-fde
linux-azure-fde-5.19
linux-azure-fde-6.2
linux-azure-nvidia 6.8.0-1022.23
linux-fips 6.8.0-78.78+fips1
linux-gcp 6.8.0-1036.38
linux-gcp-5.11
linux-gcp-5.13
linux-gcp-5.19
linux-gcp-5.3
linux-gcp-5.8
linux-gcp-6.11 6.11.0-1015.15~24.04.1
linux-gcp-6.2
linux-gcp-6.5
linux-gcp-6.8 6.8.0-1036.38~22.04.1
linux-gke 6.8.0-1032.36
linux-gke-4.15
linux-gke-5.15
linux-gke-5.4
linux-gkeop 6.8.0-1019.21
linux-gkeop-5.15
linux-gkeop-5.4
linux-hwe
linux-hwe-5.11
linux-hwe-5.13
linux-hwe-5.19
linux-hwe-5.8
linux-hwe-6.11 6.11.0-26.26~24.04.1
linux-hwe-6.2
linux-hwe-6.5
linux-hwe-6.8 6.8.0-78.78~22.04.1
linux-hwe-edge
linux-ibm 6.8.0-1033.33
linux-ibm-6.8 6.8.0-1033.33~22.04.1
linux-intel
linux-intel-5.13
linux-intel-iot-realtime
linux-lowlatency 6.8.0-78.78.1
linux-lowlatency-hwe-5.19
linux-lowlatency-hwe-6.11 6.11.0-1014.15~24.04.1
linux-lowlatency-hwe-6.2
linux-lowlatency-hwe-6.5
linux-lowlatency-hwe-6.8 6.8.0-78.78.1~22.04.1
linux-nvidia 6.8.0-1035.38
linux-nvidia-6.11 6.11.0-1010.10
linux-nvidia-6.2
linux-nvidia-6.5
linux-nvidia-6.8 6.8.0-1035.38~22.04.1
linux-nvidia-lowlatency 6.8.0-1035.38.1
linux-nvidia-tegra 6.8.0-1009.9
linux-oem
linux-oem-5.10
linux-oem-5.13
linux-oem-5.14
linux-oem-5.17
linux-oem-5.6
linux-oem-6.0
linux-oem-6.1
linux-oem-6.11 6.11.0-1022.22
linux-oem-6.5
linux-oem-6.8
linux-oracle 6.8.0-1032.33
linux-oracle-5.0
linux-oracle-5.11
linux-oracle-5.13
linux-oracle-5.3
linux-oracle-5.8
linux-oracle-6.5
linux-oracle-6.8 6.8.0-1032.33~22.04.1
linux-raspi 6.8.0-1035.39
linux-raspi-realtime 6.8.0-2028.29
linux-raspi2
linux-realtime 6.8.1-1030.31
linux-realtime-6.8 6.8.1-1030.31~22.04.1
linux-riscv
linux-riscv-5.11
linux-riscv-5.19
linux-riscv-5.8
linux-riscv-6.5
linux-riscv-6.8 6.8.0-78.78~22.04.1
linux-starfive-5.19
linux-starfive-6.2
linux-starfive-6.5
linux-xilinx 6.8.0-1017.18

References

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